Automatic boltless rim



May 22, 1923, 1,456,375

' l A. FORSMAN AUTOMATIC BOLTLESS RIM r Filed Deo. 2, 1921 FIG. 1.

1? j I .Y 15 l 20 f :Iwo-autor, NDRaw FORSMAN Patented May 22, l923.

ANDREW FORSMAN, OF IRON RIVER, MICHIGAN, ASSIGNOR 0F ONE-HALF TO ARCEIE BEACHAMP AND EMIL BEAUCHAMP, ONE-TENTS TO HECTOR MCPHEE, AND ONE- TENTH TO EDWARD GREENWOOD, ALD OF IRON COUNTY, lMIIICHIGAN, AND OISI'IE-I TWENTIETH T0 A. E. STUHT, OF IRON RIVER, MICHIGAN.

AUTOMATIC BOITLESS RIM.-

Applieation :led December 2, 1921.

T0 all whom, t may concer/n: i

Be it known that I, ANDREW FoRsMAN, a citizen of the Uni-ted Si ates, residing at Iron River, in the county of Iron and State ofv Michigan, have invented certain new and useful Improvements in Automatic Boltless Rims; and I hereby' declare that the following is a full, clear, and exact description -miounting and demounting of automobile rims.

My device is designed to be operated by hand without the use of wrench, screw driver vor other tool. The operation is accomplished by pulling upon my device and locking same by a sliding bolt. l

In the manufacture of mylug I prefer to form it so that the cross section thereof will be substantially as shown in Fig. 3', this construction having been found to be stronger and to wear longer than the old round lug now in use.

Referring to the drawings Fig. 1 denotes a portion of a hub, spokes, felly, and rim showing my device in place. Fig. 2 is a cross section on the line 22of Fig. 1. Fig. 3 denotes an end .view of my lug.

Referring more particularly to the drawings :--1O denotes a demountable rim of conventional type having formed therein a socket l1 of substantially triangular sec` tion for the reception of a lug 12. The main wooden fell 13 has mounted thereon a metal rim 14. t will be seen from the drawings that my lug 12 has a round shank l5 a shoulder 16 anda hand grip or knob 17. A plate 18 having therein a hole for the passage of said shank 15 is attached to said wooden felly 13 by screws 19. A locking slide plate 20 having a guide slot 21 is held in slidable relation to'said shank 15 by a screw 22 and Asaid sliding plate 20 is adapted Serial N0. 519,475.

to Slide into slot 23 when a is desired to hold the lug 12 out of engagement with the demountablerim.

Y Itwill be noted that I prefer to bevel a port1on of my lug so -that it may more readily i'nd its seat in socket l1.

It is also apparent that a hole similar to the cross section of my lug 12 is formed in A the metal rim 14 to prevent the turning of said lug.

Further it will be seen that I may attach a spring to sliding plate 20 so that said` spring will be normally under tension and will force said plate to register with the slo '23 when the lug 12 is disengaged.

It will be seen that my automatic boltless rim or rim lock provdes a long vfelt need of a quick'detachment for a demountable rill comprising simplicity and durability.

aims- 1. Rim locks ofthe class described oom-v prising a telly; a metal rim mounted thereon; a demountable rim slidable on said metal rim; lug members comprising an end portion adapted to enter sockets in said demountable rim; shank slots formed therein to receive locking slides adapted to 'hold said lugs out of engagement with said demountable rim and hand grips for the disengagement of saidlugs from said sockets, said lugs being raidally slidable in the felly and said rims and springs normally holding said lugs in said sockets.

2. In a rim lock the combination of a radial lug for a demountable rim comprising an end member adapted to engage said rim and a shank member attached to said end member hav-ing a slot therein; a 'spring adapted to hold said end member in engagement with said rim and a sliding member adapted to engage the slot in said shank when said lug is retracted from said rim.

In testimony that I claim the foregoing as my own, I aix m signature,

AN R W FORSMAN.

ortions having 

